“Therewill come a time,” I said, “when all of us aredead. All of us. There will come a time whenthere are no human beings remaining to rememberthat anyone ever existed or that ourspecies ever did anything. There will be noone left to remember Aristotle or Cleopatra,let alone you. Everything that we did andbuilt and wrote and thought and discoveredwill be forgotten and all of this”—I gesturedencompassingly—“will have been for naught.Maybe that time is coming soon and maybeit is millions of years away, but even if wesurvive the collapse of our sun, we will notsurvive forever. There was time before organismsexperienced consciousness, andthere will be time after. And if the inevitabilityof human oblivion worries you, I encourageyou to ignore it. God knows that’s whateveryone else does.”